Rachel E. Haurwitz - Apr 22, 2025 SCHEDULE 13D Report for Caribou Biosciences, Inc. Common stock, par value $0.0001 per share (CRBU)

Filing Manager
Rachel E. Haurwitz
Reporting Manager
Rachel E. Haurwitz
Security
Caribou Biosciences, Inc. Common stock, par value $0.0001 per share
Symbol
CRBU
Shares outstanding
94.3M shares
Disclosed Ownership
4.72M shares
Ownership
5%
Form type
SCHEDULE 13D
Date filed
4/25/2025, 04:40 PM
Date of event
Apr 22, 2025
SEC
View on sec.gov

Reporting Managers (3)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
The City Canyon Family Trust dated May 31, 2021 3.6% 3.37M 0 3.37M /s/ Rachel E. Haurwitz By: Rachel E. Haurwitz, Co-Trustee
Rachel E. Haurwitz 5% 4.72M 0 4.72M /s/ Rachel E. Haurwitz Rachel E. Haurwitz 0001670579
Felix Adler 5% 4.72M 0 4.72M /s/ Felix Adler Felix Adler